In this chapter, we present the general theory describing the interaction of an impinging electromagnetic field with transmission lines, with particular reference to lightning-induced voltages.

Chapter Contents:

• 18.1 Introduction
• 18.2 Transmission line theory
• 18.3 Electromagnetic field interaction with overhead lines
• 18.3.1 Single-wire line above a perfectly conducting ground
• 18.3.2 Taylor, Satterwhite and Harrison model
• 18.3.3 Agrawal, Price and Gurbaxani model
• 18.3.4 Rachidi model
• 18.3.5 Inclusion of losses
• 18.3.6 Multiconductor lines
• 18.3.7 Coupling to complex networks
• 18.3.8 Frequency-domain solutions
• 18.3.9 Time-domain solutions
• 18.3.10 Application to lightning-induced voltages
• 18.3.10.1 Effect of Ground Losses on Overvoltages Due to a Direct Strike
• 18.3.10.2 Effect of Ground Losses on Induced Overvoltages
• 18.4 Electromagnetic field interaction with buried cables
• 18.4.1 Field-to-buried cables coupling equations
• 18.4.2 Frequency-domain solutions
• 18.4.3 Time-domain solutions
• 18.4.4 Lightning-induced disturbances in a buried cable
• 18.5 Conclusions
• Acknowledgements
• References

Inspec keywords: lightning protection; lightning; power overhead lines; underground cables; electromagnetic coupling; atmospheric electromagnetic wave propagation

Other keywords: lightning-generated electromagnetic fields; underground cables; lightning-induced voltages; electromagnetic field interaction; overhead cables; transmission lines

Subjects: Atmospheric electricity; Electromagnetic wave propagation; Overhead power lines; Power system protection; Electromagnetic wave propagation and interactions in the lower atmosphere